Project Descriptions for FY 15

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1 Department of Transportation and Stormwater Services Stormwater Engineering and Design Division Project Descriptions for FY 15

2 43 rd Street Outfall PH II Pond Regional Drainage Improvement Flooding Relief FY2015 Estimated cost: $700K The project reduces the severity of flooding affecting commercial properties and roadways. The project consists of the construction of a 5.0 acre pond to provide storage for runoff that is adversely affecting properties in the area. Approximately 10 ac-ft of attenuation storage is provided. Phase II of the project will provide a new outfall from the pond to convey runoff south to the 43 rd Street ditch, just upstream of McKay Bay.

3 43 rd Street Outfall PH III Regional Drainage Improvement Flooding Relief FY2015 Estimated cost: $4.1M (City Share $2.05M) The project provides a new secondary outfall to convey runoff from the Phase I regional pond to the 43 rd Street Outfall. Phase II improvements provide additional flood relief for properties and roadways that are severely impacted. The project consists of the construction of a 48-inch RCP pipe from the Phase I regional stormwater pond to the 43 rd Street Outfall just upstream of McKay Bay. Additionally, a culvert upgrade will be constructed at the terminus of the 43 rd Street ditch to reduce flooding on adjacent properties. It is anticipated that the project will be constructed in phases through FY 2017.

4 Peninsula Flooding Relief PH I (Vasconia) Flooding Relief FY CAD Estimated cost: $5M (City Share $2.5M) Upper Peninsula Regional Stormwater Improvements is a multi-year flood relief project covering approximately 3400 acres of South Tampa from Kennedy Boulevard southward to Euclid Avenue. Stormwater Engineering Division has developed a stormwater model and comprehensive study of the project area, with the goal providing incremental improvements to the stormwater infrastructure. The main benefit of the project is to provide targeted relief in flood prone areas to address public safety. This is the initial phase of a regional stormwater project to provide flooding relief for The Upper Peninsula of Tampa bay. The scope of services are to provide survey, utility locate, and design of a stormwater system in congested rights of way serving the neighborhoods of Belmar Gardens and Virginia Park. Qualifications submittal shall include as-built drawings prepared by current staff that demonstrate the ability to design large diameter stormwater pipes and structures within rights of ways that are congested with other utilities including utility offsets. SWFWMD cooperative funding project. 1

5 Project Map Watrous Canal Rehabilitation Rehab FY CAD Estimated cost: $2.25M Project Photo The existing ditch has severe bank erosion on the south side with many fences and encroachments into the ditch easement. There is an existing seawall/retaining wall on the north side of this ditch providing for a stable bank but some restoration is necessary along this side. This project will provide for rehabilitation and stabilization and of the existing south ditch bank from Westshore Blvd. to Manhattan Ave. and along abutting properties on the south side of the existing ditch, replacement of failing portions of ex. Seawall on North side, and improvements to culverts at Ferncroft and Westshore. Improvement of the ditch system will extend the useful life of the ditch and improve the conveyance of storm flows from the drainage basin. 2

6 The City has numerous box culverts that are over 20 years old. These structures need remedial work to repair spalled concrete and joint leaks. Create a annual contract to address the repairs in a timely fashion as they become evident. RELATED ISSUES: Repair major culverts within roadways prior to resurfacing or rebuilding the roads. Box Culvert Misc. Rehabilitation Rehab FY CAD Estimated cost: $750K Project Photos 3

7 Neptune Lagoon Water Quality FY CCC Estimated cost: $500K Per agreement with Beach Park Civic Assoc., City of Tampa conducts routine maintenance dredging of the Neptune Lagoon to maintain adequate drainage capacity. Topographic and bathymetric survey will be conducted to assess depth of water and sediment on the bottom of Neptune Lagoon. Upon result of survey data, design & permitting will initiate for maintenance dredging activity. Project notification letters sent to surrounding neighbors, and neighborhood meeting will be conducted before start of field dredging work. 4

8 30 th Street Outfall Water Quality 2015 Estimated cost: $500K Existing 60-inch diameter stormwater pipe outfalls to Hillsborough River at 30 th St., causing continual erosion of adjoining properties. City crews have installed rip-rap to fortify the banks, but erosion has persisted. Stormwater is evaluating the purchase of the property on the east side of the outfall. The intent is to enlarge the discharge channel and, if necessary, construct a larger outfall structure to accommodate future pipes. RELATED ISSUES: Several stormwater pump stations utilize the existing outfall pipe and expanding the channel will allow for the extension of force mains directly to the river. 5

9 Chronic groundwater seepage due to perched water table. PROJECT DESCRIPTION: Construction of an underdrain system and complete replacement of roadway, subgrade, sidewalk, and driveway aprons along Kensington Avenue. Geotechnical report complete. Sanitary sewer lines will be upgraded in conjunction with this project. Kensington Ave Groundwater Diversion Flooding Relief FY CAD Estimated cost: $850K Prosed Project Map 6

10 Edison Ave Groundwater Diversion FY CAD Estimated cost: $600K This section of Hyde Park has experienced extremely high groundwater level causing seepage from the cracks in the sidewalks, driveways and roadway. This seepage has killed roadway trees and prompted a growth of algae on the street and sidewalks, posing a hazard to pedestrians and traffic. PROJECT DESCRIPTION: Project includes the installation of underdrains along each side of the roadway from north of Inman to Bayshore Blvd. There the underdrains will be connected to the existing inlets for discharge to Hillsborough Bay. Edison Street will be done first, followed by Delaware and Boulevard as funding becomes available. 7

11 Marjory Ave Roadway Reconstruction Flooding Relief FY CAD Estimated cost: $600K Pavement overlays have prevented roadway runoff from flowing to the existing stormwater system. Regrading and resurfacing will improve conveyance of runoff and alleviate standing water. Regrade and replace existing asphaltic brick roadway with asphalt surface and granite curb on Marjory Avenue between Howard and Albany. Regrade and resurface asphalt roadway and concrete curb on Albany between Marjory and Dekle. Replace sidewalks and driveway aprons. Possible funding by residents to install red brick. 8

12 Anita Subdivision PH I Drainage Improvements Flooding Relief FY CCC Estimated cost: $300K This neighborhood was developed with ditches draining to a collection system that discharged the stormwater to a system on Westshore Blvd. Over the years the ditches have been filled and driveway culverts have been installed improperly. Consultant will evaluate the current drainage patterns and identify areas where ponding occurs. City crews will reestablish the relic ditches and correct the driveway culverts. 9

13 Concordia Pond Flooding Relief FY CCC Estimated cost: $125K During heavy rain events, several parcels at corner of Concordia and Kensington experience flooding due to outdated drainage system. PROJECT DESCRIPTION: Four parcels have been acquired to construct a drainage pond to provide additional drainage system capacity, before discharge to box culvert in adjacent CSX corridor. CSX drainage connection permit will be obtained before construction. 10

14 South Ave. (Grady to Cortez Ave.) Flooding Relief FY CCC Estimated cost: $100K South Avenue at Cortez has experienced flooding over the years. The intersection along this corridor drains very slowly because the pipes/ditches connecting the inlets to the main line pipe system are undersized. Project Photo This project will provide a drainage solution to address the existing problems at this location. The Drew Park Phase 2 Grady Avenue project that is underway 2013, it will provide a stub-out for this project to connect. 11

15 Ballast Point at MacDill Flooding Relief FY CCC Estimated cost: $125K The intersection experiences frequent flooding from blocked drainage, resulting from the cumulative impact of sidewalk additions and street overlayment. The project will improve conveyance to relieve flooding in the intersection. Construction of new surface water management facilities and roadway re-grading. Within Lower Peninsula project area. 12

16 Almeria Flooding Relief Flooding Relief FY CCC Estimated cost: $50K This area of Tampa (Almeria & Jean Circle) has experienced numerous flooding events in the past 5 years. Root system of existing Oak trees has damaged the brick paver road pavements and curb/gutter system extensively, thus blocking the overland drainage pattern of the street and creating flooding conditions at several locations along the street. Additional inlet/piping to be installed to existing system. This drainage system is part of the regional drainage system to be upgraded in near future (Upper Peninsula Phase II project). 13

17 Wyoming Flooding Relief Ph 1 Flooding Relief FY CCC Estimated cost: $150K Development in the vicinity of Wyoming/Trilby/Thornton Avenue. utilizes a system of drainage ditches to collect runoff. The ditch system has been compromised by roots of large trees and improper installation of culverts. This project will evaluate the entire neighborhood and provide a solution to reduce flooding and convey water to existing system on Leila and Elkins Ave. This project will phased over two years. 14

18 2908 S Westshore Flooding Relief Flooding Relief FY CCC Estimated cost: $100K The location has inadequate surface water conveyance due to roadway super elevation resulting in frequent yard and street flooding. The project is desirable because it will provide relief for localized flooding. PROJECT DESCRIPTION: The project consists of installation of a trench drain system to alleviate flooding at a low lying area at 2908 S. Westshore. 15

19 Crawford Street: Freeman to Rome Flooding Relief FY CAD Estimated cost: $100K Localized flooding is experienced along Crawford Street, between Rome and Freemont. Storm pipe and inlet system will be installed to alleviate flooding. Redline properties are reported along both sides of Crawford St. 16

20 Albany: Barclay to Mariana Flooding Relief- FY CCC Estimated cost: $100K Roadway and yard flooding occurs along Albany St at Mariana St. The project will relieve flooding. Evaluating Exfiltration trench option. Construction of approximately 1100 lf of new pipe inlets to convey runoff to existing system in Barclay Avenue is option B. Commitment letter sent for FY

21 Bernini Alley Flooding Relief FY CCC Estimated cost: $50K Stormwater conveyance from Alley behind Bernini restaurant to abutting street is causing a sidewalk crossing concern. The project will provide flooding relief. Construction of new pipe and inlets to collect and convey runoff to existing system in N. 17 th St. 18

22 Pawnee Flooding Relief Flooding Relief FY CCC Estimated cost: $100K Roadway and yard flooding occurs along Pawnee between Linebaugh and 98 th Street. There is currently no stormwater conveyance or curb and gutter at this location. The project is desirable because it will provide relief for localized flooding. Construction of curb and gutter, roadway regrading, lateral and new inlets to convey runoff to existing system at Oklawaha Avenue. 19

23 Idell Street Roadway Improvements PH I Flooding Relief FY CCC Estimated cost: $100K Tampa Police Department has requested to open the unimproved portion of E. Idell Street east 150 to E. Mulberry Dr. Transportation Engineering has hired Faller Davis & Assoc. to model, permit and design roadway, pond and stormwater conveyance to relieve localized flooding due to trash and tree debris as well as install new roadway. Stormwater in house construction crews will be responsible for installing the laterals and proposed ditch outfall to river. Construction of roadway features, stormwater laterals, new inlets and ditch to convey runoff to the Hillsborough River. Site located at 1911 E. Mulberry is in property acquisition for proposed outfall/ditch location. 20

24 Idell Street Roadway Improvements PH II Flooding Relief FY CCC Estimated cost: $50K Tampa Police Department has requested to open the unimproved portion of E. Idell Street east 150 to E. Mulberry Dr. Phase II will include permitting and design for the new outfall ditch. Stormwater in house construction crews will be responsible for installing the laterals and proposed ditch outfall to river. Construction of new ditch and outfall from the 1911 E. Mulberry site to the Hillsborough River. Site located at 1911 E. Mulberry is in property acquisition for proposed outfall/ditch location. 21

25 Due to closed basin and lack of drainage system, City will be expanding drainage capacity in the Frierson Ave & 47th Street area to help alleviate flooding problems. Besides pond expansion in Phase 2, roadway repaving and re-routing of water system will be part of the pond construction work. City has completed land acquisition phase and Frierson Ave will be completely vacated between 47th St and 45th St. RELATED ISSUES: Existing pond built in phase 1 will be expanded in Phase th and Frierson Pond PH II Flooding Relief FY CCC Estimated cost: $150K 22

26 Swann Ave Drainage Improvements Flooding Relief FY CAD Estimated cost: $50K Localized flooding is experienced at these 2 intersections during heavy rain event. New inlets and piping will be installed to connect to existing along Swann Ave. This drainage improvement project is part of a roadway repaving construction project. 23

27 Lantana: 109 th to 113th Flooding Relief FY CCC Estimated cost: $100K Flooding is occurring along Lantana, due to the lack of positive outfall. Runoff is restricted by a railroad right-of-way, approximately 4 feet above the street grade. PROJECT DESCRIPTION: Selected design alternative is to pipe drainage north along Lantana to discharge to existing manhole with stub out, which then discharge to pump station system at the newly constructed pond. 24